Christian frederik larsen



(No Model.)

0. F. LARSEN. I GBNTRIPUGAL MAOHINBFOR GREAMING MILK..

.4 Home 1/ Patented July 9, 1889.

WITNESSES N, Pnzns. Phnwmm m m, Wnhingion. 0. c4

UNITED STATES PATENT O FICE.

CHRISTIAN FREDERIK LARSEN, OF COPENHAGEN, DENMARK.

CENTRIFUGAL MACHINE FOR CREAMING MILK.

SPECIFICATION forming part of Letters Patent No. 406,746, dated Ju1y 9, 1 889.

Application filed March 7, 1888. Renewed January 28, 1889. semi no. 297.829. a. Inodel.)

To all whom it may concern:

Be it known that'I, CHRISTIAN FREDERIK LARsEN, a subject of the King of Denmark, residing at Copenhagen, in the Kingdom of Denmark, have invented certain new and usef ul Improvements in Centrifugal Machines for Oreaming Milk, 810.; and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference bein g had to the accompanying drawings, which form a part of this specification, and in;

which- Figure 1 is a vertical transverse section,

used for creaming milk; and my improvements consist in the improved construction and comblnation of parts of the apparatus, as will be hereinafter more fullydescribed, and particularly pointed out in the claims.

Reference being had to the accompanying drawings, the letter A designates the usual revolving spindle, upon the upper end of which is securely fastened, by means of acollar or bushing B, the centrifugal chamber or receiver, (designated bythe letter C.) The latter consists of a shallow pan or vessel of circular shape having an annular straight flange 1). Upon the top of this flange is fastened, by means of nutted bolts or screws E, a ring F, which rises on an incline inwardly toward the middle of the receiver G at any suitable angle, and upon the under side of this flange 1), and attached thereto by means of the same screws or bolts which form the means of attachment for the top ring or collar, is another ring or collar, (shown at G,) the sides of which incline downwardly and inwardly 011 the under side of the receiver 0, as clearly illustrated in Figs. 1 and 2 of the drawings.

which falls slightly below the upper rim of the upper collar F, as indicated in dotted lines in Fig. 1-.

J in Fig. 1 designates the pipe or tube through which the sweet milk is fed into the machine, and the lower end or mouth of this feed-pipe terminates a short distance above the center'of the shallow pan or dish 0. By preference this feed pipe J is connected in two partsviz., the feed-pipe proper and a lower. adjustable part or nozzle 1, as shown in Fig. 2, which, by means of a threaded bushing K, may be so adjusted as to regulate the distance between its lower open end and the center of the receiver, thereby regulating the flow of milk into the receiver.

In the construction shown in Figs. 1 and 2 the rim of the shallow receiver 0, where this impinges upon the collars F and G, is bored through to form apertures or outlets L, where by communication is established between the centrifugal vessel and the annular space or chamber g, formed between the under side of the same and collar G. Then milk is fed into the receiver and this revolved rapidly by means of its spindle A, the contents of the receiver will, by the centrifugal action, be spread in a thin even layer over the shallow dish-shaped bottom of the receiver up under the u pwardly-projectin g rim or collar F. Owing to the centrifugal action upon the milk, the cream will be separated from the milk at this point, the cream. forming a thin film or layer on the under side of the collar Funtil this layer extends to the top of the collar, when it overflows and is thrown out into the shallow vessel I, from which it may be conducted to a suitable vessel by means of pipes. The skim-milk, on the other hand, will find its outlet through the circumferential aper tures L, from which it will escape down into the lower collar G, and then flow into the bottom of the pan or jacket H, from which it is conducted to a suitable vessel by means of piping'in the usual manner.

The constructions shown in Figs. 1 and 2 differ from each other in this only,that in the construction shown in Fig.1 the cream is supposed to escape into its receiver I by overflowing the upper rim of collar F, whereas in the construction shown in Fig. 2 the cream escapes through apertures or .outlet-s f, cut through the upper rim of the collar F, which may, in that case, be provided with a cylindrical wall F, so that the cream will collect in the annular space between the cylinder F and its sloping inner wall F, and from this receptacle it may be drawn off as fast as colleeted into a suitable vessel by siphoning or by other suitable means.

The construction shown in Fig. 3 does not differ in its operation from the operation of the forms of my machine illustrated in the two preceding figures, the only difference being that in that case the lower collar G is brought nearer to the center of the machine and fastened to the under side of the shallow receiver 0 by means of the screws or bolts 0.

The annular space or chamber formed by this collar G below the bottom of the receiver is connected by pipes g with the inner rim or circumference of the revolving receiver (3, so that the milk, after the cream has been separated therefrom, will escape through these outlet-pipes g down into the lower chamber g in precisely the same manner as though the apertures L were at the extreme outer portion of the circular pan, as shown in Figs. 1 and 2.

In order to cause an even flow of fresh milk into. the receiver 0, I prefer to use a speciallyconstructed feeding apparatus, the arrangement of which may, however, be modified in various Ways without departing from the spirit of my invention.

In Fig. 4 I have shown the lower end or outlet J of the feed-pipe bent to one side in the direction of a hollow truncated cone M, which is fixed by means of braces m upon a post N, projecting upwardly from the center of the receiver in line with the spindle A.-

In Fig. 5 the outlet-pipe J is made straight; but the milk, as it escapes from its lower end, is received upon a circular flat plate or disk 0, from which it is spread evenly over the inner walls of the cone M, which in this case is fastened upon the bottom of the receiver, the milk escaping out into the same through a series of apertures 72.

In Fig. 6 the lower end of the feed-nozzle .I is carried down'to within a short distance of the center of the receiver, and the milk escapes out into a trough in the shapeof an inverted cone M, from the upper end of which,

' by the centrifugal action of the machine, it

overflows into the outer cone M, from which it escapes out into the centrifugal receiver proper through the outlets or apertures 01.

Having thus described my invention, I claim and desire to secure by Letters Patent of the United States I. As an'improvement in centrifugal machines adapted for creaming milk, &c., the combination, with a shallow receiver, of an upper inwardly-proj ectin g collar and a lower inwardly-projecting collar, the receiver com- D municating with the space formed between its under side and the lower collar by means of suitable ducts, substantially as and for the purpose shown and set forth.

2. The combination of the inwardly-projecting upper collar, the shallow centrifugal disk or receiver, pipes secured to the bottom of the receiver, the inwardly-projecting lower collar, and suitable ducts or connections between the receiver and the annular space formed between the bottom of the receiver and its encircling lower collar, substantially as and for the purpose shown and set forth.

3. The combination of the receiver, constructed in the form of a shallow vessel or pan, and having an upper inwardly-projecting collar and a lower inwardly-projecting collar, and provided with ducts, as described, with the truncated cone arranged in the center of the receiver, and the adjustable supply pipe or nozzle, substantially as and for the.

purpose set forth.

In testimony whereof I have hereto affixed my signature in presence of two witnesses.

CHRISTIAN FREDERIK LARSEN.

\Vitnesses:

HOFMAN BAUG, FREDERIK \VOLFF. 

